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Data Models into Database Designs

Data Models into Database Designs
Which is not true about surrogate keys?

They have meaning to the user.
They are short.
They are numeric.
They are fixed.

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Data Models into Database Designs
When the parent entity is required, a new child row can always be inserted.

False
True

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Data Models into Database Designs
Which of the following column properties would be used to specify that cells in a column must contain a monetary value that is less than another monetary value in the same row?

Data type
Null status
Default value
Data constraints

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Data Models into Database Designs
In a 1:N relationship, the foreign key is placed in:

either table without specifying parent and child tables.
the child table.
the parent table.
either the parent table or the child table.

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Data Models into Database Designs
A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):

composite key.
surrogate key.
foreign key.
primary key.

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Data Models into Database Designs
In a 1:1 relationship, the foreign key is placed in:

the parent table.
either table without specifying parent and child tables.
either the parent table or the child table.
the child table.

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